Hooks and loop fastener attached to a bobbin by ultrasonic welding

Abstract

Method to attach an annular band (11) of adhesive material such as Velcro (hook and loop fastener), felt or similar material onto a substantially cylindrical support (10) onto which it is suitable to wind a product for example for spinning for example of the sliver type in which, the annular band (11) is attached to the support (10) by means of welding along at least one circumference. a substantially cylindrical support of the cop or spool type, onto which it is suitable to wind a product for spinning of the sliver type, includes an annular band onto which is attached a corresponding outer annular band (11) of substantially adhesive material, such as Velcro (hook and loop fastner), felt or similar material, the annular band (11) being attached to the support (10) by means of welding made along at least two circumferences arranged in proximity with the peripheral edges of the annular band (11).

I claim: 
     
       1. Method to attach an annular band of adhesive material onto a substantially cylindrical support onto which it is suitable to wind a product the method comprising welding the annular band to the support along at least one circumference. 
     
     
       2. Method as in claim 1, characterised in that the welding is made along at least two circumferences arranged in proximity with the peripheral edges of the annular band. 
     
     
       3. Method as in claim 2, characterised in that the welding is also made along at least a third circumference in an intermediate position between the two circumferences. 
     
     
       4. Method as in claim 2 characterised in that the welding is made at separate welding points. 
     
     
       5. Method as in claim 4, characterised in that the welding points made on the circumferences are arranged along rectilinear segments arranged at an angle to the longitudinal axis of the support. 
     
     
       6. Method as in claim 4, characterised in that the welding points made on the circumferences are staggered with respect to each other in such a manner that at least two of the welding points lie on any one peripheral segment of the outer annular band, parallel to the longitudinal axis of the support. 
     
     
       7. Method as in claim 1, characterised in that the welding is carried out in a continuous manner. 
     
     
       8. Substantially cylindrical support onto which it is suitable to wind a product for spinning the support including an annular band onto which is attached a corresponding outer annular band of substantially adhesive material, wherein the annular band is attached to the support by means of welding made along at least two circumferences arranged in proximity with the peripheral edges of the annular band. 
     
     
       9. Support as in claim 8, characterised in that the welding is achieved also along at least a third circumference at an intermediate position between the two circumferences. 
     
     
       10. Support as in claim 8, characterised in that the welding is achieved at separate points of welding. 
     
     
       11. Support as in claim 10, characterised in that the points of welding achieved on the circumferences are arranged along rectilinear segments arranged at an angle to the longitudinal axis (17) of the support (10). 
     
     
       12. Support as in claim 10, characterised in that the points of welding (15a, 15b, 15c) made on the circumferences are staggered with respect to each other in such a manner that at least two of the points of welding lie on any one peripheral segment of the outer annular band parallel to the longitudinal axis of the support. 
     
     
       13. Support as in claim 8, characterised in that the welding is carried out in a continuous manner. 
     
     
       14. Support as in claim 8, characterised in that the outer band has an outer surface comprising a felt material. 
     
     
       15. Support as in claim 8, characterised in that the outer annular band has an outer surface comprising a hook and loop fastener material. 
     
     
       16. Method as in claim 1, characterised in that the annular band has an outer surface comprising a felt material. 
     
     
       17. Method as in claim 1, characterised in that the annular band has an outer surface comprising a hook and loop fastener material.